HNPM mzr-7255

Max Capacity: 288 ml/min

Max Pressure: 40 bar

Max Viscosity: 1000 mPas

Temperature Range: -20 to +100 °C 

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Hermetic Inert Series Pump mzr-7255 micro annular gear pump suitable for aggressive and corrosive fluids from HNP Mikrosysteme.

The HNP MIkrosysteme micro annular gear pump mzr-7255 is leak Free, has a long Service life and is low on energy consumption with outstanding resistance to corrosion and wear. 

The HNP (HNPM) Mikrosysteme  mzr-7255 micro annular gear pump of the hermetic and chemically inert series is, considering its almost universal suitability for aggressive and corrosive media, a revolution in the pump technology. Its rotors and functional elements being made of ceramics, the pump shows the highest chemical resistance and an outstanding resistance to wear. Thanks to the use of SSiC (pressureless sintered silicon carbide) as bearing and shaft material, a magnetic coupling, and case components made out of alloy C22 (DIN 2.4602), this pump will take up any challenge in the chemical industry applications.


Advantages of the HNP Mikrosysteme HNPM mzr-7255 micro annular gear pump with compact chemically inert pump head.

  • High resistance to corrosion – oxidizing and reducing media, acids and bases
  • Long service life – wear-resistant ceramic components

  • Hermetically sealed – magnetic coupling (NdFeB)

  • Compact, chemically inert pump head – 146 mm long, alloy C22, SSiC, Al2O3 and ZrO2-ceramics

  • Precision motor and user-friendly control – dynamic DC-servomotor with encoder and microcontroller RS-232 or CAN-Bus, analog, I/O 

  • Precise dosage, low pulsation rotary micro annular gear technology, no valves


Applications of the HNPM mzr-7255 Hermetically sealed ceramic rotor pump: 

  • Mini plant technology
  • Microreaction technology
  • Accessories
  • Heat insulation module
  • Electrical heating module





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